Hybrid Dual Band Radio Frequency and Solar Energy Harvesting System for Making Battery-less Sensing Nodes
| Autor: | Wasif Tanveer Khan, Muhammad Hamza, Arslan Riaz, Mutee Ur Rehman, Zaki Maqsood |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
business.industry 020208 electrical & electronic engineering Energy conversion efficiency 020206 networking & telecommunications 02 engineering and technology Input impedance Solar energy law.invention law Solar cell 0202 electrical engineering electronic engineering information engineering Optoelectronics Radio frequency Antenna (radio) business Omnidirectional antenna Energy harvesting |
| Zdroj: | RWS |
| DOI: | 10.1109/rws50353.2021.9360396 |
| Popis: | In this paper, a highly efficient dual band Radio Frequency (RF) energy harvester is coupled with a solar cell to make a hybrid RF/Solar Energy Scavenging system. The energy harvesting system utilizes a circularly polarized dual band omni directional antenna to receive GSM1800 and Wi-Fi 2400 signals from both sides. A low threshold and concurrent dual band rectifier is designed for RF to DC conversion. Schottky Diode SMS-7630 is used as rectifying element and microstrip lines and stubs based dual band input impedance matching network is used to match the non-linear input impedance of rectifier to the antenna. The antenna has a gain of 3.84dBi at 1.8GHz and 5.45dBi at 2.4GHz. The RF to DC conversion efficiency for a typical input power of -10dBm is 52.1% and 42.1% at 1.85GHz and 2.45GHz respectively. Monocrystalline solar cell SLMD121H10L is used for harvesting solar energy due to its wide spectral sensitivity range and compact size. The cell exhibits open circuit voltage V oc = 6.30V, short circuit current I sc = 50 mA and can provide up to 292mW of power under irradiance of 100mWcm-2. The hybrid RF/solar energy harvester produces 192.9μW of DC power which can be utilized in making various battery-less sensing applications. |
| Databáze: | OpenAIRE |
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